Flushing-tank.



W. A. FRASER.

FLUSHING TANK.

APPLIUATION FILED Nomea, 1912.

Patented Sept 15, 19l4 VHE NOHRIS PEEHs 1:0.. PHOTO-urna, WASHINGTON. u.C.

WILLIAM ALEXANDER FRASER, or GEoRGETowN, ONTARIO, CANADA.

FLUSHING-TANK.

Specification of Lettersatent. f n Patented Sept. 15, 12914.

AppiicauonfnedNovemseI-ze,1912. seminars-4,024.. y v

To all 'whom it may concern Be it known that I, WILLIAM ALEXANDERFRASER, of the townof Georgetown, in the county of Halton, in theProvince of Ontario, Canada, havepinvented certain new and usefulImprovements in Flushing- Tanks, of which the following is thespecification.

My invention relates to the improvements in liushing tanks, and theobject of the in` vention is to provide an open flushing tank in whichthe intake valve isclosed by the pressure behind it contrary to theusual practice, in other words the valve is located between the point ofpressure andthe seat instead of the seat between the point of pressureand the valve and thus the pressure serves to seat the valve to shut offthe supply.

A further object is to dispense with any float to finally close on? thewater.

Another object is to provide a ball of maximum durability to close o thewater passing through the flushing pipe.

A still further object is to simplify and cheapen the flushing tankgenerally.

My invention consists of an inlet pipe having an upper elbow forming avalve chamber, a ball and orifice at the bottom of the chamber, a leverto shift the ball operated from the float on the end of the arm attachedto the outer end of the fulcrum of the lever, a flushing pipe extendingthrough the bottom of the tank and provided with a suitable yieldingseat, a ball valve of comparatively heavy material normally located onthe seat, a tipping cage fulcrumed on the top of the flushing pipe, arod extending through the arm. of the float and provided with a stopbelow the arm and connected at the top to the operating crank to whichthe pull is afxed, the parts bein otherwise constructed and arranged asIiereinafter more particularly explained.

Figure 1 is a sectional view of an open flush tank provided with myimprovements. Fig. 2 is a perspective detail of the flushing pipe andcage lever thereof.

In the drawings like letters of reference indicate corresponding partsin each figure.

A is the flushing tank.

B is the inlet pipe for the water, which extends through the bottom ofthe tank and is provided with an elbow B1 having at the bottom a screwplug B2 through which extends anorilice B2 having atrthe top an annularseat B4 upon which rests the ball valve C.

D is the shifting lever having a suitable spindle D1 and an elargedupper end D2.

E is the screw plug, which is fitted into the end of the elbowand F is aspiral spring extendingbetween the enlarged end D2 of the shiftingleverv and the screw` plug.`

By manipulating the screw plug the pressure of the spring may beregulated. r

,G is an arm rigidly` connected to the end of the fulcrum spindle D1 ofthe shifting lever and having located atk the opposite end a float H.

I is a flushing pipe, which extends through the bottom of the tank andis provided with a suitable annular seat I1 of the yielding material.

I2 is a ball valve.

J is a cage lever pivoted on the pins J1 at the top of the flushing pipeand having a small end connected by a rod K to the bell crank L on thespindle L1 near thetop of the flushing tank. The rod is provided with anoperating arm on the outside as indicated in dotted lines to which maybe connected the pull.

K1 is a stop 'located on the rod K below the sleeve K2 secured on thearm G. A stop may be located also above the sleeve K2 if desired to makethe device automatic.

M is a sanitary device communicating by a pipe M1 to the bottom of thetank and by a pipe M2 to the ushing pipe. The sanitary device is of atype2 which I have described in concurrent applications and need not befurther referred to.

Having now described the principal parts involved in my invention Ishall briefly describe its operation.

Upon the pull being operated the bell crank L pulls up on the rod K andtilts Vthe cage lever J on its pivot and throws back the ball allowingthe water to pass downwardly through the flushing pipe. The float nowwill fall and thereby allow the shifting lever to open the ball valveand allow the water to come through the inlet pipe B and orifice B3 intothe tank. The movement of the arm and fioat will be controlled by thestop K1, so as to give a definite movement to the shifting lever and theball valve C.

The pressure of the water passing through the inlet pipe will serve toclose the ball valve as soon as the lever is shifted back into thenormal position shown in the drawing by reason of the loat. As soon asthe float falls sufficiently low, of course, the ball valve I2 is thrownback on its seat on the top ot the flushing pipe, this movementoocurring previously to the restoring of the ball valve C to its Closedposition.

As herein before described a stop may be provided above the sleeve K2 inorder to make the supply of the inlet water and the flush automatic.

It will be readily understood that by adjusting the arm Gr of the floaton the end of the fulcrum pin of the shifting lever for the valve C,that the quantity of water admitted for the flush may be regulated inquantity as desired.

`In the drawings I have shown a spring F between the upper end D2 of thelever D and the plug E, but it will, of course be understood that thisspring is only necessary where there is no water works pressure.

Vhat l claim as Iny invention is- In a flushing tank, the Combinationwith the flushing pipe and inlet pipe the inlet pipe having an elbow atthe top forming a valve chamber and an outlet orifice, a ball and seattherefor at the bottom of the valve Chamber, 01' a shifting leverpivoted on a suitable uloruin pin and an arm connected to said pin andhaving a float thereon, said shifting lever and valve being interposedbetween the pressure or intake end of said inlet pipe and said seat, apassage leading from the upper end of said Chamber, an adjustable plugin said passage, and a spiral spring disposed between the upper end ofsaid lever and said plug.

WILLIAM ALEXANDER FRAZER. lVitnesses B. BOYD, M. EGAN.

Copies of this patent may bevobtained for five cents each, by addressingthe Commissioner of Patents.

Washington, .6.

